001-901-382-6084 International 888-397-5353 USA kele.com © 2012 Kele, Inc. All rights reserved. The Kele name and logo are registered trademarks of Kele, Inc.

POWER MONITORING & PROTECTION

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CURRENT-OPERATED SWITCHES CS1A, CS1150A-LED, SCS1.5A, SCS1150A-LED

Frequency 6-100 Hz Switch Type Normally open, solid state (SC250-

NC is normally closed) Rating 1-135 VAC/VDC, 0.3A (SC250-NC

model 0.2A) Insulation Class 600V Trip Point CS1A Fixed, 1A SCS1.5A Fixed, 1.25A CS1150A Adjustable 1-200A SCS1150A, SC250-NC

Adjustable 1.25-200A Range CS1A, CS1150 1 - 200A, Jumper High SCS1.5A, SCS1150A, SC250-NC

1.25 - 200A, Jumper High Deadband 5% of setpoint Response Time Less than 250 milliseconds Off State Leakage < 25 mA Jumper None = 0-100A Mid = 0-150A High = 0-200A

Operating Temperature -22° to 158°F (-30° to 70°C) Mounting 3.5"L (8.9 cm) with 3.0" (7.6 cm)

mounting centers Dimensions

CS1A, CS1150 1.9 x 3.45 x 1 (4.82 x 8.76 x 2.54 cm) SCS1.5A, SCS1150A, SC250-NC

2.75 x 3.45 x 1.2 (6.98 x 8.76 x 3.04 cm)

Window Size CS1A, CS1150 0.75" (1.9 cm) dia, for up to 250

MCM cable SCS1.5A, SCS1150A, SC250-NC

0.85" (2.2 cm) square aperture, for up to 350 MCM cable

Weight 0.25 lb (0.11 kg) Approvals UL listed, File #E320368 CE certifi ed Warranty 1 year

DESCRIPTION

The Kele Models CS1A, SCS1.5A, CS1150A and SCS1150A are solid-state switches that operate when the AC current level sensed by the internal current transformer exceeds a fixed or adjustable trip point. Internal circuits are totally powered by induction from the conductor being monitored. There is zero off-state leakage current in the solid-state relay output that can switch AC or DC circuits. The Smart LED indication option eliminates the need for meters when setting the adjustable trip point of the current switch. Solid-core and split-core models are available.

FEATURES

• Models with fi xed or adjustable trip point• Switch AC or DC circuits• Power and status LED• Applicable for VFD applications down to 6Hz• Powered by monitored line• Available in solid-core models or split-core models that

clamp easily around cables• Five-year warranty• UL listed, CE certifi ed

SPECIFICATIONS

SCS1150A-LEDSCS1.5A

CS1150A-LEDCS1A

January 2012

© 2012 Kele, Inc. All rights reserved. The Kele name and logo are registered trademarks of Kele, Inc. kele.com 888-397-5353 USA 001-901-382-6084 International 781

POWER MONITORING & PROTECTIONPO

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CURRENT-OPERATED SWITCHES CS1A, CS1150A-LED, SCS1.5A, SCS1150A-LED

Bldg Automation System, Energy Mgmt System,

1-135VVAC/VDC max0.3A

Relay, Lamp,Small Contactor,or Similar ACor DC Load

Terminals not polarity sensitive

DigitalInput

Terminals not polarity sensitive

Monitored Conductor Monitored Conductor

WIRING

INSTALLATION / ADJUSTMENT

ORDERING INFORMATION

MODEL DESCRIPTION CS1A Solid-core current switch, fi xed 1.0A trip, normally open SCS1.5A Split-core current switch, fi xed 1.25A trip, normally open CS1150A-LED Solid-core current switch, adjustable, normally open with LED SCS1150A-LED Split-core current switch, adjustable, normally open with LED SC250-NC Split-core current switch, adjustable, normally closed with LED

Sensors can be mounted in any position or hung directly on wires. For larger mounting screws, drill out mounting holes. Use up to #14 AWG copper wire to terminals. Tighten to 7 in-lb torque.

Adjustment for CS1150A and SCS1150A1. With the sensor wired as shown, use a voltmeter across the sensor contacts. A full voltage across the contact confi rms the

switch is open. Turn on the motor or other load being monitored.2. The sensor is shipped with the multiturn adjustment set to the most sensitive position. If the sensor now operates, turn the

adjustment counter-clockwise (CCW) until the operation reverses. The meter will indicate this action.3. Now, turn the adjustment clockwise (CW) until the sensor just operates its controlled circuit. It is desirable to turn the

adjustment slightly beyond this threshold point to provide a margin for normal current variations.

Status LED Indicator1. Light: Suffi cient current is fl owing to opposite device.2. No light: Current is either OFF or below the bottom of the range.

Application Notes1. Make sure that switched current (connected to terminals) is limited to 0.3A continuous. Switched voltage should be no higher

than 135 VAC/VDC.2. Important! Monitoring excessive current can damage the sensor. Make sure monitored currents do not exceed maximum

ratings.3. For proper operation of the split-core model, make certain that the mating surfaces of the magnetic core are clean.

TroubleshootingProblem Probable Causes and Corrections1. Sensor does not switch at all, Adjustment pot is probably backed off completely, which disables the sensor. regardless of current level. See Installation/Adjustment immediately above for instructions. Verify that mating surfaces of the split core are free of foreign particles.2. Adjustment has no stops; The multiturn adjustment pot has a slip-clutch that prevents damage at either end of its keeps turning. rotation.

January 2012